Classification
700 - The arts; fine & decorative arts
610 - Medicine & health
70
000 - Computer science, information & general works
24
330 - Economics
22
333 - Economics of land & energy
20
363 - Other social problems & services
16
140 - Specific philosophical schools
15
580 - Plants (Botany)
11
600 - Technology
11
380 - Commerce, communications & transportation
10
900 - History & geography
9
370 - Education
7
620 - Engineering & allied operations
7
320 - Political science
6
340 - Law
6
551 - Geology, hydrology & meteorology
5
612 - Human physiology
5
540 - Chemistry & allied sciences
4
576 - Genetics & evolution
4
658 - General management
4
800 - Literature & rhetoric
4
581 - Specific topics in natural history
3
615 - Pharmacology & therapeutics
3
170 - Ethics
2
300 - Social sciences
2
361 - Social problems & social welfare in general
2
414 - Phonology & phonetics
2
500 - Natural sciences & mathematics
2
530 - Physics
2
100 - Philosophy & psychology
1
200 - Religion
1
304 - Factors affecting social behavior
1
400 - Language
1
410 - Linguistics
1
630 - Agriculture & related technologies
1
720 - Architecture
1
770 - Photography, photographs & computer art
1
780 - Music
1
920 - Biography, genealogy & insignia
1